Home / 27,315,508.05-40,899,840.49-20,807,581.64

Finding the Fourth Proportional to 27,315,508.05, 40,899,840.49 and 20,807,581.64

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Solution

The fourth proportional to 27,315,508.05, 40,899,840.49 and 20,807,581.64 is: 31,155,443.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,315,508.05 : 40,899,840.49 = 20,807,581.64 : x
  2. Step 2: Convert to fraction form
    27,315,508.05/40,899,840.49 = 20,807,581.64/x
  3. Step 3: Cross multiply
    27,315,508.05x = 40,899,840.49 × 20,807,581.64
  4. Step 4: Simplify right side
    27,315,508.05x = 851,026,769,993,181.75
  5. Step 5: Solve for x
    x = 851,026,769,993,181.75/27,315,508.05
  6. Step 6: Final answer
    x = 31,155,443.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.